Home / 6,755.40-10,137.96-3,980.34

Finding the Fourth Proportional to 6,755.40, 10,137.96 and 3,980.34

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Solution

The fourth proportional to 6,755.40, 10,137.96 and 3,980.34 is: 5,973.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,755.40 : 10,137.96 = 3,980.34 : x
  2. Step 2: Convert to fraction form
    6,755.40/10,137.96 = 3,980.34/x
  3. Step 3: Cross multiply
    6,755.40x = 10,137.96 × 3,980.34
  4. Step 4: Simplify right side
    6,755.40x = 40,352,527.71
  5. Step 5: Solve for x
    x = 40,352,527.71/6,755.40
  6. Step 6: Final answer
    x = 5,973.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.